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    • 1. 发明公开
    • 폐 촉매로부터 VI-B 족 금속을 회수하는 방법
    • 从活性催化剂中回收VI-B族金属的方法
    • KR1020090063257A
    • 2009-06-17
    • KR1020097007531
    • 2007-09-14
    • 알베마를 네덜란드 비.브이.
    • 지터스요한네스코르넬리스프레하르만누스빌렘호만오그엔보브게라르두스
    • C22B7/00C22B34/34C22B34/36
    • C22B7/009B01J23/28B01J23/30B01J23/85B01J23/883B01J23/8885B01J37/031B01J38/68C10G49/04C10G2300/706C22B23/026C22B34/345C22B34/365Y02P10/214Y02P10/224Y02P10/23Y02P10/234
    • The invention relates to a process for recovering Group VIB metals from a catalyst, in particular a spent bulk catalyst, comprising one or more Group VIB metals and one or more Group VIII metals. Further, the invention relates to a solid Group VIB metal compound obtainable by the process according to the invention having the general formula H2XO4, wherein X = W1-yMoy, wherein y is between O and 1 and to its use in a process for the manufacture of a fresh catalyst. The process comprises the steps of: a) oxidizing the one or more Group VIB metals to one or more Group VIB metal oxides; b) separating the one or more Group VIB metal oxides from the one or more Group VIII metals; c) dissolving the one or more Group VIB metal oxides in water to produce an aqueous solution of one or more Group VIB metal oxides; d) precipitating the one or more Group VIB metal oxides from the aqueous solution by adding alkaline earth metal (Group IIa) ions to the aqueous solution; e) optionally filtering and washing the precipitate; and f) transforming the precipitate by adding an acid to form a solid metal compound comprising one or more Group VIB metals.
    • 本发明涉及从催化剂,特别是废体积催化剂中回收VIB族V族金属的方法,其中包括一种或多种VIB族金属和一种或多种第Ⅷ族金属。 此外,本发明涉及通过本发明的方法获得的具有通式H2XO4的固体VIB族金属化合物,其中X = W1-yMoy,其中y在0和1之间,并且其用于制造方法中 的新鲜催化剂。 该方法包括以下步骤:a)将一种或多种VIB族金属氧化成一种或多种VIB族金属氧化物; b)从一种或多种VIII族金属分离一种或多种VIB族金属氧化物; c)将一种或多种VIB族金属氧化物溶解在水中以产生一种或多种VIB族金属氧化物的水溶液; d)通过向该水溶液中加入碱土金属(IIa)族离子,使该VIB金属氧化物从该水溶液中沉淀出来; e)任选地过滤和洗涤沉淀物; 和f)通过加入酸形成包含一种或多种VIB族金属的固体金属化合物来转化沉淀物。